Erbijsommen tot 20
Erbijsommen
|
1.
11 + 6 =
17
12
|
2.
18 + 1 =
12
19
|
3.
4 + 6 =
10
5
|
4.
20 + 0 =
7
20
|
|
5.
13 + 3 =
9
16
|
6.
1 + 16 =
12
17
|
7.
9 + 9 =
7
18
|
8.
16 + 2 =
18
6
|
|
9.
16 + 1 =
8
17
|
10.
18 + 0 =
6
18
|
11.
3 + 7 =
8
10
|
12.
20 + 0 =
6
20
|
|
13.
8 + 0 =
11
8
|
14.
8 + 6 =
3
14
|
15.
15 + 5 =
20
4
|
16.
1 + 18 =
11
19
|
|
17.
5 + 13 =
3
18
|
18.
2 + 11 =
13
11
|
19.
11 + 1 =
12
8
|
20.
12 + 5 =
17
5
|